Boring-tool



(NoMoael'.)

BORING TOOL.

Patented Jan. 24,1888.

INVENTR;

WITNESSES:

52.52%" y if 8 ATTORNEY.

l'N'ITED STATES PATENT GEEICE.

MAx QUAss, oF PHILADELPHIA, PENNSYLVANIA.

BORING-TOOL.

SPECIFICATION forming part of Letters Patent No. 376,906', dated January 24, 1888.

' Application med April 27, 1881. semi No. 236,364. (No moda.)

l To all whom, it may concern:

Be it known that I, MAX QUAss, a subject of the Czar of Russia, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Boring-Tools, which improvement is fully set forth in the following specification and accompanying drawings.

My invention relates to improvements in boringtools; and it consists in forming the lsame in sections, as hereinafter described and tion `on line w m, Fig. 1.

Referring to the drawings, A represents the tool,which is formed in sections, each consisting of a'semi-cylindrical shell,a, withl its forward endv rounded or pointed, the two sections being placed together edge to edge and clamped by a sleeve, B, and screw B', as willbe seenin Figs. 1 and 3, the edges of the sections overlapping, as in Fig. 5, whereby said edges produce cuttingedges b in the directionv 0f th length of the tool.

XVhen the tool is rotated, it is presented to t-he wood to be bored and forced against the same, whereby it enters the wood, forms an opening therein, and smoothly cuts or shaves the face of the bore. Again, the tool maybe used to enlarge openings previously made,an'd also shave or smooth the face of such openings.

The sections or shells a may beseparatedfor sharpening purposes and removal of clippings,

Ste., that may have collected betweenv them,al I

though the tool-clears itself of such` matters through the open sides of the tool formed by the overlapping edges thereof. l l

f The tool is connected with a flexible shaft,O, lby means of the sleeve D, head E, and' screws F, which latter engage with a groove in the tool. The shaft receives motion from gearing G, mounted in a box, E, and operated by a crankshaft, treadle, Sto., said boxes being provided with a clamp, whereby it may be secured toa table or elsewhere. 1

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is f l. A-boring-tool consisting of semi-tubularsections with sloping forward ends and overlapping cutting side edges and a clampingsleeve, substantially'as described.

2. A boring-tool consisting of sections hay? ing rounded forward ends and overlapping edges, substantiall y as and for the purpose set forth. v

3. The combination of lboring-tool composed of tubular sections with overlapping edges,with the sleeve D, the head E, the screws F, and flexible shafting C, substantially as described.

MAx QUAss.

Witnesses:

JOHN A. WTEDERsHEIM, J As. F. KELLY. 

